As RV'ers continue to demand more amenities for their lifestyles, the ALS 20 automatic load shed device helps electrical systems safely operate more items from a limited number of circuit breakers. ALS 20 allows operation of two 20-amp loads from a single 20-amp branch circuit. ALS 20 is designed to meet the requirements of NEC Section 551.42(C) to allow operation of more than two 120-volt thermostatically controlled devices.
In a typical RV installation, the ALS 20 has a shedable load such as an electric water heater connected to the shed circuit and a priority load circuit typically used to power on-demand devices such as a microwave oven or toaster. The device on the shed circuit can be delayed temporarily via the ALS 20 to allow the on-demand device to operate when needed.
ALS-20 Parallax Automatic Power Load Shed Device
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